Dust-separating apparatus.



4 4 y Q/m Noi.897,s42. A I PATENTED SEPT.1,1908. v

0. vv E. BOEGEL. DUST SEPARATING APPARATUS.

APPLICATION FILED MAR. 30, 1908.

j 5 4 [wwemtor 2 SHEETS-SHEET I NO. 897,342. PATENTED SEPT. 1,1908.

0. W. E. BOEGEL. DUST SEPARATING APPARATUS.

APPLICATION FILED MAR .30, 1908.

2 SHEETS-SHEET 2.

' of which the following is a specifi "UNITE earn; ran; rrcn.

CARL W. E. BOEGEL, OF LIMA, OHIO.

DUST-SEPARATING APPARATUS.

I. Specification of Letters Patent.

Patented Sept. 1, 190s.

Application filed March '30, 1908. Serial no. 423,994.

To all whom it may concern: Be'itknown that I, CARL W. E. BOEGEL, a citizen of the United States, residing at Lima, Allen and State of Ohio,

Improvements in Dust-Separating Apparatus,

cation.

My inventionrelates to improvements in apparatus for separating dust from air, being lace more 'es 'ecially designed for use in connectlOIIWll? a vacuum inducing apparatus for removlng dust from carpets and other objectsof like character, although it will prove equally efficient when used in connection with a blowing apparatus, to prevent the passage of the dust into the open air.

Myinvention consists in a internallywith a primary foraminous dia phragm, an inlet below and an outlet above the primary diaphragm,

and a series of secondary foraminous diaphragms interposed between the primary diaphragm and the outlet, as well as in the details of construction and arrangement of parts as will hereinafter 1.2

be more fully described and claimed.

In the drawings: Figure line correspondingto the line yy of'Fig. 3, of an apparatus-embodying my invention, Fig. 2 is a bottom view of the top lid, having the series of secondary diaphragms thereon. Fig. 3 is a cross section on a l ne corresponding to the line ccm of Fig. 1.

. Fig-L4 is an enlarged sectional'view, illustra'ting the attachment of one of the series of secondary diap'hragms to the top lid, and Fig. 5 is a similar view, illustrating the attachment of the primary diaphragm to the hoop. Fig. 6 is a detailed perspective view of orie of the hubs.

p'Ihe casing 1, of cylindrical formation is provided at its lower end with an opening 2 closed by a bottom lid 3, which is held in place by means of stud bolts 4 permanently secured in the adjacent wall of the casing an nuts '5 on the bolts 4.

' bolts 8 and nuts 9 having screw thread The upper end of the casing 1 is provided with an opening 6 preferably of greater diameter than that of the opening 2 in the lower end, andthis opening 6 is closed by a top lid 7 held in place by stud thereon, the bolts being ermanently secured in the adjacent wall of the casing 1 in the same manner as are the bolts 4. The top lid 7 is provided with a centrally located opening 10, concentric with which isa flange 11 riveted to the lid 7 and casing-provided 1 is a vertical secpipe or hose may be connected to communicate between the interior of the casing 1 and a suitable vacuum inducing apparatus, not herein shown since it does not constitute part of my invention. Both the plates 3 and 7 are provided with suitable gaskets at 13 and 14, respectively, so that air-tight joints are formed between them and the adjacent wall of the casing.

Near the lower end of the casing an opening 15 is provided in one of its sides, concentric with which a flange 16 is riveted to the wall of the casing, and through which flange a nipple 17 is screwed'to project inside of the the nipple, A bent spout 19 is screwed into the coupling and preferably has a flaring up per end 20. The use of the nipple 17 and coupling 18 in connection with the flange 16 is forthe purpose of facilitating the mount ing of the curved spout 19 inside the casing. since it is impossible to turn the spout 19 completely around in the casing. By using the nipple 17 and coupling 18, the coupling 18 may be screwed onto the spout 19 and introduced into the casing, whereupon the nipple 17 may be screwed through the flange 1.6 into the coupling, drawing the ,parts firmly intoposition and holding them; To the outer end of the nipple "17 a pipe or rose may be connected so as to con'nnunicate through the spout 19 between the interior of the casing, and a suitable nozzle or renovat ing tool in an air-tight manner, and which nozzle or renovating tool, not constitutin part of this invention, need not be herein described.

Near the middle of the height of the casing 1, the concave-convex primary foraminous diaphragm 21 is mounted with its convex side normally downward toward the flaring opening 20 of the spout '19. The spout 19 with respect to each other that the lowermost surface of the diaphragm 21 will be at a su'liicient distance from the flaring opening 20 of the spout 19 to prevent the lodgn'ient of dust particles between the pout and the diaphragm when these particles are thrown back by contact with the lower surface of the diaphragm, on coming out of the spout 19, as indicated .by arrows in Fig. 1. By having the diaphragm spaced away from the spout 19, the dust particles will be directed laterally of the casing and fall to its bottom s12 by means of which a around the spout, where they may be taken and the primary diaphragm 21 are 'so located v posing the 5.

Hot-two thicknesses of burlap of hoops v wlnc h z hoops is clearly riveted the ends in two semi-circular sect ons for this purpose.

out through the opening 2 by removing the lid 3 from the lower end. of the casing. The diaphragm 2]. is preferably composed. of three thiclrnesses of burlap of suitable mesh at its edges around a hoop 22, and reinforced by Semi-circular ribs 23 and 24 riveted at their ends to the hoop 22. sewing the burlap around the hoop 22 as well as of securing theends or" the braces .to the hoop is c learlyillustrated in Fig. 5 of the drawing.

. -The loraminous diaphragm intercepts the coarser dust particles, carried by the air through the spout. 19 from the nozzle or renovating tool, but in order to further purify the air afterit passes xhrou h. the primary diaphragm, a secondary series of diaphragms is, interposed between the primary dia phragm 21 and the outlet througlrthe open ing 10in the lid 7. The iirst diaphragm of this secondary series ispre'leral'ily composed a somewhat the burlap comprimary diaphragmv 21, while the second. diaphragm 26.ol the secondary series isol liner mesh than that of the 'lirst diaphragni 25, and the third and last diaphragm hner mesh than that of is of liner mesh than that. of the second diaphragm26. Each ol the diaphragms 26 and. 27is also composed of two thicknesses of. burlap and all of the (.liaphragms 25, 26 and 27 of the secondary series are reinforced 31 and 32'and I which ribs are riveted to flat and 36, r-spe'ctively, around 0 sewed the edges of the burlap composing ie diaphragms 25, 26 and 2?, respectively. The manner in which the ribs are secured to the that hoop, as well as the manner o1 sewing the burlap around the ribs and illustrated in. Fig. 4 of the respectii drawing.

During the use of meshes of the primary diaphragm 21 will be come clogged with dust particles, and in order to provide for cleaning thediaphragm' 21, I make it invertible by mounting it rigidly on a shaft 37, journaled in a closed cap 38 riveted on the outside of the casing in an air-tight manner at one end, and journaledin a stufling-box 39 on the wall. of the casing at the other end. hubs 4O and4l are rigidly mounted on the shaft 37 by means of set screws 42 and 4-3, respectively, and these hubs have arms 44 projecting laterally therefrom, to which are of the hoop 22 which'is made The hubs and 41 are so proportioned that the outersides of the hoop 22 conform to their outer ends 45am present along with them a regular convex surface toward the concave surface of the interior of the casing 1, between which are-inserted the thicknessesof burlap composing th e "diaphragm21, to form a packing, asis' best The manner of l l i l the apparatus the Inside the casing,

illustrated in Fig. 3 of the drawing. A hand wheel 46 is rigidly mounted on the end of the shaft 37 outside the casing, and when it is desired to clean the diaphragm-21, ,the

. shaft37 maybe rotated by means ofthe ,hand wheel 46, to invert the diaphra In 21,

which inverted position is indicated by the dotted line A in Fig. l.- The primary diaphragm 21 is so located with reference to the secondary diaphragms that the 'riinar'y'dia' phragm will engage slightly wit the, lowermost surface of the first diaphragm 25 of the secondary series, thus causing a jarring of the primary diaphragm as well as 'ofthe secondary diaphragm, efliciently dislod ingrthe dust particles from the recesses o both dia phragms.

By construe-ting theprimaryr diaphragm in a substantially hemispherical shape an-d positioning the ribs 23 and 24 at acuteangles to the axis of rotation of the diaphragm, two distinct contacts between the'primarygdiaphragm 21 and the first secondary diaphragm 25 will occur during the act of inverting the primary diaphragn The first contactof the primarydiaphragm 21 withthe secondary diaphragm 25 will be in the region of the hoop 22, while the second contact will be at the point where the ribs 23 and 24 cross, and which is the lowermost point of the primary diaphragm when it is innormal o erative position. There will be no contact etween the diaphragnis excepting at the points above mentioned, owing to the fact thatbetween the ribs the burlap forming'the'diw phragm will not be distended to the full hemispherical shape, but will stretclrin sub- H stantially a straight line from onerib to the next one. It is desirable that the primary diaphragm should be constructed with the circular hoop 22 and the semi-circular ribs 23 and .251. to form a substantially hemispherical structure, since this allows the greatest extent of burlap, or other air filtering n1'aterial,-tobe presented downward, and at the same time allow all of the parts of the diaphragm; to pass the interior surface of the wall of. the casing when the diaphragm is inverted.

In order that the diapl'iragm of the second; ary. series may be more thoroughly cleaned, the ilathocqis 3 t, 35 and 36 upon which they are mounted are attached to the lowersidc oi the top lid 7 by means of stud bolts 1? permanently secured in the lid 7', and nuts 48' on the endsojl the stud bolts belowthe flat hoops. Tihenwhen it is desired to clean the diaphragms, the top lid. may be removed by unscrewing the nuts 9 from the stud bolts 125 S, and withdrawing it, togetherwi-th the dia phragms 01 the secondary series casing, whereupon access is give. to primary diaphragm 21 The d phrag. the secondaryseriesmaythen bemni e'i...

l at

version of the primary .allows the dust particles,

openin removed by unscrewingthe nuts 48, and as conveniently replaced after cleaning. This thorough cleaning of the diaphragms will not be often required, owing to the fact that the primary diaphragm 21 and the first diaphragm 25 of the secondary series, which will receive most of the accumulation, may be readily cleaned by means of inverting the primary diaphragm "21 and bringing them into contact as above described. This indiaphragm 21 also thrown back from the diaphragm 25, to fall to the bottom of the casing, where they may be removed through the opening 2 therein.

Having ful y described my invention, I claim:

1. In dust separating apparatus, a cylindrieal casing, an inverted concave-convex primary'foraminous diaphragm in the casing, the casing having an inlet below the diaphragm and an outlet above the diaphragm, a spout communicating" with the inlet and adapted to direct air and dust against the convex side of the diaphragm, and a series of secondary foraminous diaphragins, interposed between the primary diaphragm an the outlet, substantially as and for the pur poses specified. v

2. In dust separating apparatus, a casing of cylindrical formation having an inlet in its convex side near its lower end, a foraminous diaphragm in the casing of hemispherical formation, presenting its convex side downwar toward thelower end of the cylindrical. casing and adapted to be rotated therein to invert it, a curved spout communicating with the inlet and adapted to conduct air and dust upward against the convex side' of the diaphragm whereby the air may pass through the diaphragm and whereby dust will be intercepted by the diaphragm and thrown downward in the casing around the curved spout, and an outlet from the casing above the diaphragm, substantially as and for the purposes specified.

3. In dust separating apparatus, a cylindrical easing, an inverted coneavo-eonvex primary foraminous diaphragm in the casing, the casing having an inlet below the diaphragm and an outlet above the diaphragm, a curved spout communicating with the inlet and adapted to direct air and dust against the convex side of the diaphragm, and a series of secondary foraminous diaphragms interposed between the primary diaphragm and the outlet, substantially as and for the purposes specified.

4. In dust separating apparatus, an upright cylindrical casing having an opening in its lower end for the removal of dust, and an for the admission of air and dust an le concave-convex primary forami a curved spout for the adinverti nous-diaphragm in the casing, commumeating the opening mission of air and dust and adapted to con duct the air and dust upward against the convex side of the primary diaphragm, a lid adapted to close t i of the casing against t 1e admission of air, the top lid adapted to close the opening inthe upper end ries of hoops on the lower surface of the top lid, and a series of secondary foraminous diahragms mounted on the hoops, the top lid iiaving an opening for the outlet of air, and the secondary diaphragms being inter osed between the primary diaphragm am the opening for the outlet of air, substantially as and for the purposes specified.

5. In dust separating apparatus, a casing, a primary foraminous diaphragm in the easing, the casing having an inlet below and an outlet above the primary diaphragm, and a series of secondary diaphragms interposed between the primary diaphragm and the outlet, the primary diaphragm being invertible and adapted to engage with one of the secondarydiapl'iragms when being inverted, sub stantially as and for the. purposes specified.

6. In .dust se iarating ap )aratus, a casing having an inlet ior air and dust and an opening for the removal of dust, a bottom lid for closing the opening against the admission of air, a concave-convex primary foraminous diaphragm in the casing above the inlet and the opening for the removal of dust, a curved spout communicating with the inlet and adapted to conduct the air and dust against the convex side of the primary diaphragm, the casing having an opening above the primary diaphragm, a top lid for closing the opening above the primary diaphragm. against the admission of air and having an outlet for the passage of air from the casing, a series of rings on the lower surface of the top lid, and a series of secondary foraminous diaphragms mounted on the hoops, the primary diaphragms being invertible to engage with one of the secondary diaphragms, an the hoops being removable from the top lid, substantially as and for the purposes specified,

7. In dust separating apparatus, a casing having an inlet and an outlet, a diaphragm, in the casing, a shaft extending through the casing, a stuffing box for the shaft where it extends through the casing,'forming a journal bearing therefor, hubs rigidly mounted on the shaft, arms on the hubs, semi-circular hoops secured to the arms on the hubs, and semi-circular ribs secured to the hoops, whereby the primary diaphragm is invertible and of substantially hemispherical formation and supported between the inlet and the outlet, substantially as and for the purposes specified.

8. In dust separating apparatus, drical casing having an inlet for air and dust in its convex side near its lower end, and an ie opening in the lower end 1 n I casing having an opening in its upper end, a

against the admission of air, a sea eyline ee e-ee outlet for 'air in its upper art, a, diaphragm and a curved spoutscrewed into the coupling, in; t casing interposed etween the inlet adapted to direct air and dust from the inlet 10 and the outlet, :2, flange on the convex side of toward the diaphragm, substantially as and v e'casing concentric with the inlet and hem: for the purposes specified.

=5- .ln g interior threads, at nip 1e havin exterior g CARL WV. E. BOEGEL. 'ads, and. extending tirough t e flange Vitnesses: from the exterior to the interior of the casing, WARREN J. MQLAUGI-ILIN. {ifcdilpling on the nipple inside the casing, JOHN W. ROBYr 

